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/*
* Copyright 2013, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <Alembic/AbcCoreHDF5/ReadWrite.h>
#include <Alembic/Abc/ArchiveInfo.h>
#include "reader.h"
#include "util_path.h"
#include "util_error_handler.h"
extern "C" {
#include "BLI_fileops.h"
#include "DNA_scene_types.h"
}
namespace PTC {
using namespace Abc;
Reader::Reader(Scene *scene, ID *id, PointCache *cache) :
FrameMapper(scene),
m_error_handler(0),
m_scene(scene)
{
std::string filename = ptc_archive_path(cache, id);
PTC_SAFE_CALL_BEGIN
m_archive = IArchive(AbcCoreHDF5::ReadArchive(), filename, Abc::ErrorHandler::kThrowPolicy);
PTC_SAFE_CALL_END_HANDLER(m_error_handler)
}
Reader::~Reader()
{
if (m_error_handler)
delete m_error_handler;
}
void Reader::set_error_handler(ErrorHandler *handler)
{
if (m_error_handler)
delete m_error_handler;
m_error_handler = handler;
}
bool Reader::valid() const
{
return m_error_handler ? m_error_handler->max_error_level() >= PTC_ERROR_CRITICAL : true;
}
void Reader::get_frame_range(int &start_frame, int &end_frame)
{
if (m_archive.valid()) {
double start_time, end_time;
GetArchiveStartAndEndTime(m_archive, start_time, end_time);
start_frame = (int)time_to_frame(start_time);
end_frame = (int)time_to_frame(end_time);
}
else {
start_frame = end_frame = 1;
}
}
ISampleSelector Reader::get_frame_sample_selector(float frame)
{
return ISampleSelector(frame_to_time(frame), ISampleSelector::kFloorIndex);
}
PTCReadSampleResult Reader::test_sample(float frame)
{
if (m_archive.valid()) {
double start_time, end_time;
GetArchiveStartAndEndTime(m_archive, start_time, end_time);
float start_frame = time_to_frame(start_time);
float end_frame = time_to_frame(end_time);
if (frame < start_frame)
return PTC_READ_SAMPLE_EARLY;
else if (frame > end_frame)
return PTC_READ_SAMPLE_LATE;
else {
/* TODO could also be EXACT, but INTERPOLATED is more general
* do we need to support this?
* checking individual time samplings is also possible, but more involved.
*/
return PTC_READ_SAMPLE_INTERPOLATED;
}
}
else {
return PTC_READ_SAMPLE_INVALID;
}
}
} /* namespace PTC */
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